Thiols can be made fromhaloalkanes by nucleophilic substitution of the halide ion by the sulfhydryl ion (HS−), which is an excellent nucleophile. Because thiolate ions are also excellent nucleophiles, thioethers can react again to give a thioether. Where does thiol come from? Aliphatic thiols...
Chloride ions (氯离子) can cause wear and tear on vehicles and facilities. Increasing chloride densities in North American lakes could begin to upset local ecology and degrade sources of drinking water. Many local gov...
TIP: If you are going to use the saline solution recipes, make sure to include a small box of baking soda too! Pin STEP 3: Add Color To Slime Your kids can easily make colored slime, rainbow slime, unicorn slime, galaxy slime, and any other themes they love with the simple addition ...
I’m not sure why other people are having problems, I used the Elmer’s white school glue, added the water and stirred, added the color and glitter then added the baking soda and mixed, and used the contact solution I already have for my contacts. We made all 4 in less than 15 minu...
While the battery is discharging and providing an electric current, the anode releases lithium ions to the cathode, generating a flow of electrons from one side to the other. When plugging in the device, the opposite happens: Lithium ions are released by the cathode and received by the anode...
as molecular scissors, where a simpleexchange of the RNA guide sequence is enough to redesign the nucleasespecificity has paved the way for a revolution in the life sciences. CRISPR repeats are associated with Casproteins constituting an adaptive immune system in bacteria and archaeaprotecting them ...
Coming in a variety of different configurations, ceramic-coated heating elements are said to heat more evenly and effectively. It's also popular to infuse the ceramic with materials such as crushed tourmaline, which is said to support the creation of ions and ideal heat flow. Continue to the ...
First Intuit makes it where you are forced to log in to your Intuit account. Now the "you haven't logged in to your account in 89 days" message pops up every week and I keep logging in but it doesn't seem to stick. How about Intuit tries...
These channels make the cell membrane selectively permeable to various ions and other substances (like glucose). The selective permeability of the cell membrane allows the inside to have a different composition than the outside. For the purposes of nerve signals, we are interested in the following...
As an additional benefit, when the ozone molecules degrade to 02 and molecules, this leaves free oxygen ions to bond with other contaminants like iron and sulfur. When the oxygen bonds to these molecules, it turns them into oxides, which are insoluble. These now-insoluble contaminants are then...